No Reduction Regions
"No Reduction Regions" contains of defined regions where the strength parameters are not reduced during stability analysis.
Input of the regions is identical to standard.
In stability analysis we can define regions in which the strength parameters phi a c are not reduced. The regions without reduction are input in chosen construction stage by a polygonal boundary. The reduction of strength parameters is prevented in every finite element that is - at least partially - positioned within the region.
The regions without reduction of strength parameters are helpful in situations where the stability analysis does not lead to global shear surface and the failure kinematics together with the value of factor of safety is unreliable.
The feature is applicable to all material, i.e.
- Modified Mohr-Coulomb
Other material models are not allowed in stability analysis.